Git versions of gtk, glib, goffice, gnumeric, libgsf and libxml2.

Test case: http://jutaky.com/fuzzing/gnumeric_case_011-gtype.c.4060.xls

$ ssconvert gnumeric_case_011-gtype.c.4060.xls /tmp/out.gnumeric

==28168==ERROR: AddressSanitizer: SEGV on unknown address 0x00000010a910 (pc 0x7f2409107260 bp 0x7ffe9e8dadd0 sp 0x7ffe9e8dabf0 T0)
    #0 0x7f240910725f in g_type_check_instance_cast gnumeric/glib/gobject/gtype.c:4060
    #1 0x7f23ee64f209 in xl_chart_read_end gnumeric/gnumeric/plugins/excel/ms-chart.c:2664:19
    #2 0x7f23ee62f80a in ms_excel_chart_read gnumeric/gnumeric/plugins/excel/ms-chart.c:3818:12
    #3 0x7f23ee6344d8 in ms_excel_chart_read_BOF gnumeric/gnumeric/plugins/excel/ms-chart.c:4043:8
    #4 0x7f23ee625350 in ms_read_OBJ gnumeric/gnumeric/plugins/excel/ms-obj.c:1333:7
    #5 0x7f23ee579706 in ms_escher_read_ClientData gnumeric/gnumeric/plugins/excel/ms-escher.c:2063:6
    #6 0x7f23ee571881 in ms_escher_read_container gnumeric/gnumeric/plugins/excel/ms-escher.c:2181:10
    #7 0x7f23ee571881 in ms_escher_read_container gnumeric/gnumeric/plugins/excel/ms-escher.c:2181:10
    #8 0x7f23ee571881 in ms_escher_read_container gnumeric/gnumeric/plugins/excel/ms-escher.c:2181:10
    #9 0x7f23ee571881 in ms_escher_read_container gnumeric/gnumeric/plugins/excel/ms-escher.c:2181:10
    #10 0x7f23ee570b5b in ms_escher_parse gnumeric/gnumeric/plugins/excel/ms-escher.c:2248:2
    #11 0x7f23ee5a0201 in excel_read_sheet gnumeric/gnumeric/plugins/excel/ms-excel-read.c:6833:4
    #12 0x7f23ee5939cd in excel_read_BOF gnumeric/gnumeric/plugins/excel/ms-excel-read.c:7133:4
    #13 0x7f23ee58ae22 in excel_read_workbook gnumeric/gnumeric/plugins/excel/ms-excel-read.c:7242:4
    #14 0x7f23ee563902 in excel_enc_file_open gnumeric/gnumeric/plugins/excel/boot.c:193:2
    #15 0x7f240d560ed2 in go_plugin_loader_module_func_file_open gnumeric/goffice/goffice/app/go-plugin-loader-module.c:282:3
    #16 0x7f240d569b96 in go_plugin_file_opener_open gnumeric/goffice/goffice/app/go-plugin-service.c:685:2
    #17 0x7f240d56dcec in go_file_opener_open gnumeric/goffice/goffice/app/file.c:417:2
    #18 0x7f240e16cf80 in workbook_view_new_from_input gnumeric/gnumeric/src/workbook-view.c:1278:3
    #19 0x7f240e16d2ff in workbook_view_new_from_uri gnumeric/gnumeric/src/workbook-view.c:1337:9
    #20 0x4dd2b5 in convert gnumeric/gnumeric/src/ssconvert.c:715:9
    #21 0x4dc6f4 in main gnumeric/gnumeric/src/ssconvert.c:918:19
    #22 0x7f24081d260f in __libc_start_main (/usr/lib/libc.so.6+0x2060f)
    #23 0x41a688 in _start (apps/bin/ssconvert+0x41a688)

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Juha Kylmänen